Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of pre-stressed anchor cable penetrating through water-rich sand layer
The invention relates to a construction method of a pre-stressed anchor cable penetrating through a water-rich sand layer, which is characterized by comprising the following steps of: 1, preparing the construction of the pre-stressed anchor cable penetrating through the water-rich sand layer; 2, a casing pipe for construction is installed; 3, drilling construction is conducted on the water-rich sand layer through a casing pipe follow-up method; 4, anchor cables are installed, and a secondary grouting method is adopted for grouting; 5, anchor cable waist beams are installed; step 6, tensioning and locking the anchor cable; and 7, grouting outside the pit. The method has the advantages that the sleeve of the jacketing machine penetrates through the water-rich sand layer and follows up the slump prevention hole of the steel sleeve, the steel sleeve can be repeatedly used after being pulled out, a large amount of steel is saved, and the effects of energy conservation, environmental protection, emission reduction and low carbon are achieved; the sleeve valve pipe compensation grouting technology is adopted at the anchor cable hole penetrating position of the waterproof curtain outside the pit, the waterproof curtain damage defect caused by drilling can be effectively compensated, the waterproof performance of the waterproof curtain is enhanced, and the water leakage phenomenon of the anchor cable hole position is reduced.
本发明涉及一种穿越富水砂层预应力锚索施工方法，其特征在于，包括以下步骤：步骤1.穿越富水砂层预应力锚索施工准备；步骤2.安装施工用套管；步骤3.在富水砂层部位采用套管跟进法钻进施工；步骤4.锚索安装和采用二次注浆法注浆；步骤5，锚索腰梁安装；步骤6，锚索张拉及锁定；步骤7，坑外注浆。本发明所述方法具有的优越技术效果在于，采用套管机套管穿越富水砂层，跟进钢套管防坍孔，拔出钢套管可重复利用，节省大量钢材，具有节能环保、减排低碳效果；坑外止水帷幕锚索孔穿越处采用袖阀管补偿注浆技术，能有效补偿钻孔引起的止水帷幕损坏缺陷，增强其止水性能，减少锚索孔位的渗漏水现象。
Construction method of pre-stressed anchor cable penetrating through water-rich sand layer
The invention relates to a construction method of a pre-stressed anchor cable penetrating through a water-rich sand layer, which is characterized by comprising the following steps of: 1, preparing the construction of the pre-stressed anchor cable penetrating through the water-rich sand layer; 2, a casing pipe for construction is installed; 3, drilling construction is conducted on the water-rich sand layer through a casing pipe follow-up method; 4, anchor cables are installed, and a secondary grouting method is adopted for grouting; 5, anchor cable waist beams are installed; step 6, tensioning and locking the anchor cable; and 7, grouting outside the pit. The method has the advantages that the sleeve of the jacketing machine penetrates through the water-rich sand layer and follows up the slump prevention hole of the steel sleeve, the steel sleeve can be repeatedly used after being pulled out, a large amount of steel is saved, and the effects of energy conservation, environmental protection, emission reduction and low carbon are achieved; the sleeve valve pipe compensation grouting technology is adopted at the anchor cable hole penetrating position of the waterproof curtain outside the pit, the waterproof curtain damage defect caused by drilling can be effectively compensated, the waterproof performance of the waterproof curtain is enhanced, and the water leakage phenomenon of the anchor cable hole position is reduced.
本发明涉及一种穿越富水砂层预应力锚索施工方法，其特征在于，包括以下步骤：步骤1.穿越富水砂层预应力锚索施工准备；步骤2.安装施工用套管；步骤3.在富水砂层部位采用套管跟进法钻进施工；步骤4.锚索安装和采用二次注浆法注浆；步骤5，锚索腰梁安装；步骤6，锚索张拉及锁定；步骤7，坑外注浆。本发明所述方法具有的优越技术效果在于，采用套管机套管穿越富水砂层，跟进钢套管防坍孔，拔出钢套管可重复利用，节省大量钢材，具有节能环保、减排低碳效果；坑外止水帷幕锚索孔穿越处采用袖阀管补偿注浆技术，能有效补偿钻孔引起的止水帷幕损坏缺陷，增强其止水性能，减少锚索孔位的渗漏水现象。
Construction method of pre-stressed anchor cable penetrating through water-rich sand layer
一种穿越富水砂层预应力锚索施工方法
MAO YUFEI (Autor:in) / GUO ZENGHUI (Autor:in) / ZHOU GUIYIN (Autor:in) / ZHANG JIANWEI (Autor:in) / XIE YANG (Autor:in) / ZHOU KE (Autor:in) / XIAO ZHENGWEI (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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